Lyric discussion by lostdays 

Cover art for Bye Bye Love lyrics by Backstreet Boys

I think this song is pretty self-explanatory. It's about a girl who left a guy for some other man. She didn't realise how well her first guy treated her until the guy she left for played games with her.

Now the girl's crawling back to her first guy. But he doesn't want her back because he knows they won't give each other happiness. So he says bye to her.